Quality System
Quality System & Standards
The standards, traceability and management arrangements that govern the work described on this site.
Overview
Calibration is performed by laboratories accredited to ISO/IEC 17025:2017. Certificates are issued under the performing laboratory's accreditation scope, and that scope is checked against the instrument before a request is accepted. Not every item on a quote necessarily needs an accredited certificate, and accredited and non-accredited items are identified separately on both the quote and the certificate.
Standards Referenced
Work described on this site is performed under ISO/IEC 17025:2017.
Where accreditation appears on this site it refers to the performing laboratory's own accreditation, limited to the measurements in its published scope. Requests that fall outside that scope are accepted where the capability exists, reported as non-accredited, and identified as such on the certificate. Every accreditation named here belongs to the laboratory performing the measurement.
Metrological Traceability
Measurements are traceable to the SI through NIST, with each step in the chain carrying its own stated uncertainty. Certificates state the reference standards used, the reported measurement uncertainty, and the environmental conditions recorded where they affect the result. Where a statement of conformity is given, ISO/IEC 17025:2017 requires the decision rule applied to be documented, and that rule is stated on the certificate. Where adjustment or repair is performed, results are reported both before and after.
Each measurement carries its own traceability record rather than a blanket statement: the certificate identifies the reference used, that reference's calibration status, and the documented chain linking it to the SI unit. If a reference is later found out of tolerance, everything measured against it since its last calibration is reviewed and the affected customers are told.
Equipment and Maintenance
Coverage includes bridge, gantry and cantilever coordinate measuring machines, portable articulated arms, granite surface plates, gauge blocks, and ring and plug gauges. Documented procedures govern request review, method selection against the standard specified, result review and release, and a complaints-and-appeals process for a disputed finding. Records, certificates and due-date recall data are retained and retrievable for a registrar or customer audit.
References are uniquely identified, environmentally controlled, and recalibrated to a defined schedule that drift data can shorten but not quietly extend. Damaged, overloaded or questionable equipment is removed from service and labelled until it has been verified and formally released back into use.
Management System
The work sits inside a documented management system:
- 01
Controlled documents
Procedures carry issue and revision status.
- 02
Retained records
Retained for a defined period and retrievable against a certificate number.
- 03
Audit and review
Internal audit and management review run on a schedule.
- 04
Corrective action
Nonconforming work and improvement actions are tracked to closure, and their effectiveness is checked afterwards.
Impartiality and Complaints
Where impartiality could be compromised the risk is identified and controlled, and the reported result follows the measurement rather than the commercial interest. Complaints and appeals are a formal input to the system — the process, including the response commitment, is set out on the complaints policy page. How results should and should not be read is covered on the disclaimer page.
Need paperwork for an approved-supplier file?
Scope, method statements and traceability detail are supplied with the quotation.